Advanced control system: produces 3 different waves or whirlpools, automatically change and adjustable timer controlSmall, medium and large waves change automatically in turn to recreate natural wave seen in rivers Low voltage DC pump for safetyUnique design on control system for users to adjust the time on different waves to produce best condition for fishesAutomatically changes in three modes and three adjust buttons to control the timeThree kinds of wave

Small wave (2,000L/H)

Medium wave (8,000L/H)

Large wave (15,000L/H) Voltage: 220 to 240V or 110V, 50/60Hz, power: 30WWeight: 2kgPacking: 8 pieces per carton